The Shaman Coat from Vietnam

I will be leaving on a trip to Thailand, Laos and Vietnam soon and will be looking for more Shaman Coats in Hanoi.

These are wonderful handwoven lightweight (unlined) robes all beautifully hand embroidered in silk. Not old but definitely not made recently. I haven't been able to obtain any information on how old they actually are.

Despite an extensive search I have only found reference to them in one book: The Yao: The Mien and Mun Yao in China, Vietnam, Laos and Thailand by Jess Pourret. Apparently the figures on the back represent a multitude of Gods and Saints. Very beautiful.